/**
 * @license
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export * from "./function-calling";

/**
 * Content type for both prompts and response candidates.
 * @public
 */
export interface Content {
  role: string;
  parts: Part[];
}

/**
 * Content part - includes text or image part types.
 * @public
 */
export type Part =
  | TextPart
  | InlineDataPart
  | FunctionCallPart
  | FunctionResponsePart
  | FileDataPart
  | ExecutableCodePart
  | CodeExecutionResultPart;

/**
 * Content part interface if the part represents a text string.
 * @public
 */
export interface TextPart {
  text: string;
  inlineData?: never;
  functionCall?: never;
  functionResponse?: never;
  fileData?: never;
  executableCode?: never;
  codeExecutionResult?: never;
}

/**
 * Content part interface if the part represents an image.
 * @public
 */
export interface InlineDataPart {
  text?: never;
  inlineData: GenerativeContentBlob;
  functionCall?: never;
  functionResponse?: never;
  fileData?: never;
  executableCode?: never;
  codeExecutionResult?: never;
}

/**
 * Content part interface if the part represents a FunctionCall.
 * @public
 */
export interface FunctionCallPart {
  text?: never;
  inlineData?: never;
  functionCall: FunctionCall;
  functionResponse?: never;
  fileData?: never;
  executableCode?: never;
  codeExecutionResult?: never;
}

/**
 * Content part interface if the part represents FunctionResponse.
 * @public
 */
export interface FunctionResponsePart {
  text?: never;
  inlineData?: never;
  functionCall?: never;
  functionResponse: FunctionResponse;
  fileData?: never;
  executableCode?: never;
  codeExecutionResult?: never;
}

/**
 * Content part interface if the part represents FileData.
 * @public
 */
export interface FileDataPart {
  text?: never;
  inlineData?: never;
  functionCall?: never;
  functionResponse?: never;
  fileData: FileData;
  executableCode?: never;
  codeExecutionResult?: never;
}

/**
 * Content part containing executable code generated by the model.
 * @public
 */
export interface ExecutableCodePart {
  text?: never;
  inlineData?: never;
  functionCall?: never;
  functionResponse?: never;
  fileData?: never;
  executableCode: ExecutableCode;
  codeExecutionResult?: never;
}

/**
 * Content part containing the result of executed code.
 * @public
 */
export interface CodeExecutionResultPart {
  text?: never;
  inlineData?: never;
  functionCall?: never;
  functionResponse?: never;
  fileData?: never;
  executableCode?: never;
  codeExecutionResult: CodeExecutionResult;
}

/**
 * A predicted [FunctionCall] returned from the model
 * that contains a string representing the [FunctionDeclaration.name]
 * and a structured JSON object containing the parameters and their values.
 * @public
 */
export interface FunctionCall {
  name: string;
  args: object;
}

/**
 * The result output from a [FunctionCall] that contains a string
 * representing the [FunctionDeclaration.name]
 * and a structured JSON object containing any output
 * from the function is used as context to the model.
 * This should contain the result of a [FunctionCall]
 * made based on model prediction.
 * @public
 */
export interface FunctionResponse {
  name: string;
  response: object;
}

/**
 * Interface for sending an image.
 * @public
 */
export interface GenerativeContentBlob {
  mimeType: string;
  /**
   * Image as a base64 string.
   */
  data: string;
}

/**
 * Data pointing to a file uploaded with the Files API.
 * @public
 */
export interface FileData {
  mimeType: string;
  fileUri: string;
}

/**
 * Code generated by the model that is meant to be executed, where the result
 * is returned to the model.
 * Only generated when using the code execution tool, in which the code will
 * be automatically executed, and a corresponding `CodeExecutionResult` will
 * also be generated.
 *
 * @public
 */
export interface ExecutableCode {
  /**
   * Programming language of the `code`.
   */
  language: ExecutableCodeLanguage;
  /**
   * The code to be executed.
   */
  code: string;
}

/**
 * @public
 */
export enum ExecutableCodeLanguage {
  LANGUAGE_UNSPECIFIED = "language_unspecified",
  PYTHON = "python",
}

/**
 * Result of executing the `ExecutableCode`.
 * Only generated when using code execution, and always follows a `Part`
 * containing the `ExecutableCode`.
 * @public
 */
export interface CodeExecutionResult {
  /**
   * Outcome of the code execution.
   */
  outcome: Outcome;
  /**
   * Contains stdout when code execution is successful, stderr or other
   * description otherwise.
   */
  output: string;
}

/**
 * Possible outcomes of code execution.
 * @public
 */
export enum Outcome {
  /**
   * Unspecified status. This value should not be used.
   */
  OUTCOME_UNSPECIFIED = "outcome_unspecified",
  /**
   * Code execution completed successfully.
   */
  OUTCOME_OK = "outcome_ok",
  /**
   * Code execution finished but with a failure. `stderr` should contain the
   * reason.
   */
  OUTCOME_FAILED = "outcome_failed",
  /**
   * Code execution ran for too long, and was cancelled. There may or may not
   * be a partial output present.
   */
  OUTCOME_DEADLINE_EXCEEDED = "outcome_deadline_exceeded",
}
